EP 1092964 B1 20071212 - Apparatus for noise recognition and noise separation
Title (en)
Apparatus for noise recognition and noise separation
Title (de)
Vorrichtung zur Geräuscherkennung und Geräuschtrennung
Title (fr)
Dispositif de reconnaisance et séparation du bruit
Publication
Application
Priority
- DE 19949637 A 19991014
- DE 20001263 U 20000126
Abstract (en)
[origin: EP1092964A2] The arrangement includes at least one normalization unit (13) which normalizes respectively an amplitude (12) of a certain frequency range from the spectrum of the acoustic signal (1). A differentiation arrangement (15) differentiates the normalized amplitude (14) to time, and forms an absolute value of the differentiated amplitude. A neural network (18) includes input neurones which receive the differentiated amplitude or its absolute value of the certain frequency range, and output neurones which form a classification signal (22) classifying the acoustic signal according to its frequency spectrum, giving an indication of the type of acoustic signal.
IPC 8 full level
G01H 3/08 (2006.01); F03D 7/00 (2006.01); G01H 3/14 (2006.01); G10L 15/16 (2006.01); G10L 17/26 (2013.01); G10L 21/0208 (2013.01)
CPC (source: EP)
F03D 7/0296 (2013.01); F03D 17/00 (2016.05); G01H 3/08 (2013.01); G10L 15/16 (2013.01); G10L 17/26 (2013.01); G10L 21/0208 (2013.01); F05B 2270/333 (2013.01); Y02E 10/72 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1092964 A2 20010418; EP 1092964 A3 20040901; EP 1092964 B1 20071212; AT E381001 T1 20071215; DE 20016999 U1 20010125; DE 50014840 D1 20080124
DOCDB simple family (application)
EP 00121263 A 20001005; AT 00121263 T 20001005; DE 20016999 U 20001004; DE 50014840 T 20001005